#!/bin/sh

for script in /.singularity.d/env/*.sh; do
    if [ -f "$script" ]; then
        . "$script"
    fi
done

if test -n "$SINGULARITY_SHELL" -a -x "$SINGULARITY_SHELL"; then
    exec $SINGULARITY_SHELL "$@"

    echo "ERROR: Failed running shell as defined by '\$SINGULARITY_SHELL'" 1>&2
    exit 1

elif test -x /bin/bash; then
    SHELL=/bin/bash
    PS1="Singularity $SINGULARITY_NAME:\\w> "
    export SHELL PS1
    exec /bin/bash --norc "$@"
elif test -x /bin/sh; then
    SHELL=/bin/sh
    export SHELL
    exec /bin/sh "$@"
else
    echo "ERROR: /bin/sh does not exist in container" 1>&2
fi
exit 1
